﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1.DesignerPatter.Observer
{
    interface Isubject
    { 
        void Attach(Observer obs);
        void DeTach(Observer obs);
        void Notify();

        string SubjectState
        {
            get;
            set;
        }
    }
}
